Effect of Gastric Bypass Surgery on Diabetes Status and Microvascular Complications in Obese Type 2 Diabetic Patients

NCT ID: NCT02625649

Last Updated: 2017-06-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

148 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-01-31

Study Completion Date

2017-06-30

Brief Summary

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This study evaluates the long-term benefits of Roux-en-Y gastric bypass (RYGB) on type 2 diabetes mellitus, focussing on the prevalence and predictors of T2DM improvement and remission after RYGB, and subsequently relapse of type 2 diabetes mellitus after RYGB. Moreover, the study evaluates the possible effect of RYGB on diabetic microvascular complications such as nephropathy and retinopathy. Finally, the study provides insight into the factors influencing glucose-insulin homeostasis after RYGB, including altered microbiota diversity and bile acid levels.

Detailed Description

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One hundred Danish type 2 diabetes mellitus (T2DM) patients who underwent Roux-en-Y gastric bypass surgery (RYGB) between 2006-2011 will be evaluated clinically together with 50 T2DM patients, matched on gender, age, presurgical body mass index, and diabetes duration.

The clinical follow-up consists of a physiological check-up, a thorough paraclinical work-up, and a whole body dual-energy x-ray absorptiometry (body composition and bone mineral density) a peripheral quantitative compute tomography (HR-pQCT), stool samples (microbiota), ophthalmological examination including retina photo, and a questionaire.

More over, a liquid meal test with sampling of total bile acids, fibroblast growth factor 19 and 21 (FGF 19 and FGF 21), plasma glucose, and insulin will be performed on a smaller part of the patients.

Conditions

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Type 2 Diabetes Mellitus Obesity Diabetic Retinopathy Diabetic Nephropathy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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RYGB

RYGB-operated type 2 diabetic patients

No interventions assigned to this group

non-RYGB

non-RYGB-operated type 2 diabetic controls

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Capable
* type 2 diabetes mellitus
* speaks and understands Danish
* presents written concent
* cases must be Roux-en-Y operated between 2006-2011.

Exclusion Criteria

* Converted Roux-en-Y
* chronic inflammatory bowel disease
* ischemic heart disease
* liver disease
* cholecystectomy.

Controls can not be bariatric operated.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Aarhus

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lene R Madsen, MD

Role: PRINCIPAL_INVESTIGATOR

Aarhus University Hospital

Locations

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Department of Enodocrinology and Internal Medicine, Aarhus University Hospital

Aarhus, , Denmark

Site Status

Countries

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Denmark

References

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Madsen LR, Bek T, Richelsen B. Diabetic retinopathy in people with Type 2 diabetes and obesity treated by Roux-en-Y gastric bypass compared with non-operated controls: with focus on the role of diabetes remission in a cross-sectional and a 6-year follow-up study. Diabet Med. 2019 Apr;36(4):457-464. doi: 10.1111/dme.13876. Epub 2018 Dec 26.

Reference Type DERIVED
PMID: 30537170 (View on PubMed)

Other Identifiers

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11092015

Identifier Type: -

Identifier Source: org_study_id

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